Electrical precipitator



Jan. 27,1931. HEINRICH 1,790,147

ELECTRICAL PREGIPITATOR Filed July 23, 1950 ATTORNEY Patented Jan. 27, 1931 UNITED STATES PATENT OFFICE RICHARD HEINRICH, F BERLIN-SUDENDE, GERMANY, ASSIGNOR T0 WESTINGHOUSE ELECTRIC MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA ELECTRICAL PRECIPITATOR Application filed July 23, 1930, Serial No. 470,025, and in Germany July 23, 1929.

My invention relates to electrical precipicleaning the electrodes of electrical tators.

In electrical purifying plants, the electrodes must now and then be cleaned of the dust depositing itself upon them. This is generally done by shaking the discharge and collecting electrodes by means of special shaking devices and so causing the dust to fall off the electrodes. In small precipitating plants, the arrangementof such special shaking devices makes product-ion and at-' tendance very expensive. In the following an arrangement will be described representing a simplified manner of cleaning the electrodes. 1

According to my invention, the whole precipitator is elasatically suspended and provided with a device causing the precipitator to vibrate. It is by this means possible to free the electrodes, as well as also other surfaces of the precipitator, from the deposited material.

The arrangement may be advantageously made in such manner that the precipitator is provided with a device which knocks it,

preferably at'rcgular time intervals, down upon a stationary part. The arrangement may also be made in such manner that a knocking device, for example, a magnetically controlled hammer, is employed which knocks upon a device formed as an anvil and fitted to the precipitator. Through the blows of the hammer, the precipitator is caused to vibrate violently, whereby the deposited material in the precipitator is shaken ofi.

In the drawing, an example for the carrying into efiect of the invention is illustrated; the drawing is an elevation of the example.

1 is an electrical gas-purifying chamber, in which are arranged in a known manner, not shown in the drawing, discharge and colfloating in the gases streaming through the chamber are precipitated and fall into the dust-collecting bin 2 situated below the chamber, from where they can, from time to time, be removed. The gas purifying chamber is joined by means of the connecting precipibranch 3 to the gas-inlet pipe and, by means of the connecting branch 4, to the gas-outlet pipe. leading to the point of consumption.

-5 and 6 are high-tension insulators, from estals 8,'helical springs 9 being arranged between the chamber land the pedestals 8. When shaken, the purifying chamber 1 can, therefore, vibrate. On the top of the purifying chamber 1, an electromagnet 10 is fitted and connected, by the leads 11 and 12, to the supply circuit 13. In the lead 12, an interrupter 14 is provided. In the electromagnet, an iron core 15 is placed serving as a hammer, which is lifted, when the switch 14 is closed. As soon as the switch 14 is opened, the iron core drops and falls upon the anvil-plate 16 arranged on the top of the chamber 1. The whole purifying chamber 1 is thereby shaken so that the dust deposited on the electrodes in the chamber falls into the collecting bin 2 below. As the length of the vibrations of the purifying chamber 1 only amounts to a few millimetres, it is mostly not necessary for elastic joints to be provided for the connecting pieces 3 and 4 serving to connect the purifying chamber 1 with the gas inlet pipe and outlet-pipes.

I claim as my invention:

1. A device for purifying gases electrically consisting of an electrical gas-purifying chamber,-connecting pieces suitable for connecting said chamber with a gas inlet-channel and a gas-outlet channel, devices by which the purifying chamber is supported in suchmanner as to be able to vibrate, and means for making the purfying chamber vibrate. lecting electrodes, by which the particles 2. A device for purfying gases electrically consisting of an electrical gas-purifying chamber, connecting pieces suitable for connecting said chamber with a gas inlet-chamnel and a gas-outlet channel, springs by which the purifying chamber'is supported in such manner as to be able to vibrate, and

devices for shaking the purifying chamber.

3. A device for purifying ases electrically consisting of an electrica gas-purifying chamber, connecting pieces suitable for connecting said chamber with a gas inlet-channel and a gas-outlet channel, pedestals for the purifying chamber, springs arranged between the pedestals and the purifying chamber, and devices for shaking the purifying chamber. a

4. A device for purifying gases electrically consisting of an electrical gas-purifying chamber, connecting pieces suitable for conmeeting said chamber with a gas-inlet channel and a gas-outlet channel, devices by which the purifying chamber is supported in such manner as to be able to vibrate, and an electromagnetically controlled hammer suitable for making the purifying chamber vibrate.

5. A device for purifying gases electrically consisting of an electrical gas-purifying chamber, connecting pieces suitable'for' connecting said chamber with a gas-inlet channel and a gas-outlet channel, devices by which the purifying chamber is supported in such manner as to be able to vibrate, an electromagnetically. controlled hammer for making the purifying chamber vibrate, and a device fitted to the purifying chamber and serving as an anvil for. the hammer.

In testimony whereof, I have hereunto subscribed my name this 9th day of July,

RICHARD HEINRICH. 

